Smart medical stocking using memory polymer for chronic venous disorders

Bipin Kumar, Jinlian Hu, Ning Pan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)

Abstract

� 2015 Elsevier Ltd. Proper level of pressure or compression generated by medical stocking or hosiery is the key element for successful treatment or management of chronic venous disorders such as oedema, leg ulcers, etc. However achieving the recommended compression level and, more importantly, sustaining it using stockings has been a major challenge to the health practitioners supervising the treatment. This work aims to investigate and design a smart compression stocking using shape-memory polymer that allows externally controlling the pressure level in the wrapped position on the leg. Based on thermodynamical rubber theories, we first derived several criteria that have to be satisfied simultaneously in order to achieve the controlled pressure adjustment using external heat stimuli. We then presented a case where such a stocking is developed using a blend yarn consists of selected shape-memory polyurethane and nylon filaments. Extensive experimental work has also been conducted to demonstrate the feasibility and explore the influencing factors involved.
Original languageEnglish
Pages (from-to)174-181
Number of pages8
JournalBiomaterials
Volume75
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • Compression stocking
  • Compression therapy
  • Heat stimuli
  • Interface pressure
  • Rubber elasticity
  • Shape memory polymer
  • Venous ulcers

ASJC Scopus subject areas

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

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